EP0313112A2 - Réservoir de solidification de mozarelle et de fromages frais similaires de type pasta filata - Google Patents

Réservoir de solidification de mozarelle et de fromages frais similaires de type pasta filata Download PDF

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Publication number
EP0313112A2
EP0313112A2 EP88200861A EP88200861A EP0313112A2 EP 0313112 A2 EP0313112 A2 EP 0313112A2 EP 88200861 A EP88200861 A EP 88200861A EP 88200861 A EP88200861 A EP 88200861A EP 0313112 A2 EP0313112 A2 EP 0313112A2
Authority
EP
European Patent Office
Prior art keywords
vat
nozzles
water
cheese
hardening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88200861A
Other languages
German (de)
English (en)
Inventor
Stefano Tomatis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CMT Costruzioni Meccaniche e Technologia SpA
Original Assignee
CMT Costruzioni Meccaniche e Technologia SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CMT Costruzioni Meccaniche e Technologia SpA filed Critical CMT Costruzioni Meccaniche e Technologia SpA
Publication of EP0313112A2 publication Critical patent/EP0313112A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J25/00—Cheese-making
    • A01J25/16—Devices for treating cheese during ripening
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J25/00—Cheese-making
    • A01J25/008—Apparatus for making soft uncured Italian cheese, e.g. Mozzarella, Ricotta, Pasta Filata cheese

Definitions

  • This invention is related to a chilling or hardening vat for mozza­rella and similar fresh pasta-filata cheese.
  • fresh pasta-filata cheese such as mozzarella
  • which is obtained by shaping curd that has been made plastic by the action of hot water has to be hardened by chilling, so that it changes from a plastic condition to a relatively elastic condition, and to such purpose the cheese is plunged in cold water after shaping, for typical periods of 15 to 30 minutes.
  • a main object of the invention to provide a chilling or hardening vat which overcomes or palliates the above drawbacks, and more particularly which avoids handling or touching the cheese with mechanical handlers, which ensures uniformity of the dwelling times of all processed cheese pieces in the vat, and which is easy to clean.
  • a further object is to provide a hardening vat in which the develop­ment of bacterial flora is curbed without a need for external processing facilities and without use of chemicals.
  • a chilling or hardening vat for mozza­rella and similar fresh pasta-filata cheese comprising an elongated vat for water-filling up to a predetermined level, with cheese loading means at one end of the vat, withdrawal means at the oppo­site end, and cheese propelling means between both ends, character­ized in that said cheese propelling means comprise:
  • a hardening vat according to the preferred embodiment of the invention comprises an elongated, channel-shaped vat 10 having a flat, slightly inclined bottom, and resting on legs 12.
  • the vat is intended for filling with cold water up to a predetermined level shown as 13 (Fig. 1).
  • a hopper 14 for loading round pieces of mozzarella or the like is mounted laterally at a loading end of vat 10, and is provided with a pipe 16 (broken away in the Figures for clarity) opening in one of its walls, while communicating with vat 10 thru a large-diameter conduit 18.
  • Pipe 16 is fed with water by a pump 20 which circulates water collected from vat 10 for generating a water stream thru hopper 14, the stream entering vat 10 thru conduit 20.
  • vat 10 has a pit 22 in which a sloping, metal extractor belt 24 is installed, for extraction of the hardened mozzarella pieces, as known per se, and driven by motor means 26.
  • a number of portal-shaped stands such as 28, 30 are supported on the side walls of vat 10, and they together rotatably support, in a central, longitudinal position above the vat, a main longitudinal pipe 32, closed at one end connected at the other end, thru a turning-sleeve joint 34, to a supply pipe 36 for supplying cold water from a pump 38, the latter also collecting water from vat 10.
  • longitudinal pipe 32 At intervals along the entire length of longitudinal pipe 32, several tubes such as 40, 42, 43 (most of which are symbolized by dashed lines for simplicity) depend downwardly into the vat to a height beneath said predetermined level 13, and terminate as nozzles which are bent toward the delivery end of vat 10.
  • Longitudinal pipe 32 is hydraulically connected with each tube 40, 42, 43, thru res­pective solenoid valves 44, 45, 46, individually controlled thru cables 47 running in a longitudinal channel 48 parallel to longi­tudinal pipe 32 and carried by the latter by means of brackets such as 49.
  • a cabinet 50 transversely surmounting vat 10, houses a driving unit 52 (see Fig. 4) comprising a motor with reduction gear, which drives the end of longitudinal pipe 32 thru a linkage 54, so that pipe 32 rocks around its horizontal axis, and so that tubes 40, 42, 43, and consequently their terminal nozzles, swing transversely to the vat, substantially across its entire width.
  • a driving unit 52 comprising a motor with reduction gear, which drives the end of longitudinal pipe 32 thru a linkage 54, so that pipe 32 rocks around its horizontal axis, and so that tubes 40, 42, 43, and consequently their terminal nozzles, swing transversely to the vat, substantially across its entire width.
  • Cabinet 50 further houses a control unit 56 for solenoid valves 44, comprising a bank of normally open switches 58, which are respec­tively connected to drive one of the valve control cables 47, and a camshaft 60 (partly dashed in Fig. 4), driven by a motor 62 with reduction gear, and arranged to turn on and off the individual switches according to a desired program.
  • the cams are arranged so as to generate a sequence of cold water spurts from successive nozzles 40, 42, 43, etc., starting from the one closest to the delivery end of the vat and proceeding backward. The timing of each water spurt is such that it begins at each nozzle when the latter is at one end of its swing, and that it stops at the opposite end.
  • a bank of auxiliary, stationary nozzles 64 is arranged near the delivery end of the vat, and downstream of all swinging nozzles.
  • the stationary nozzles 64 are arranged across the vat with a forward inclination, and are supplied by the same pump 38, thru a branch from pipe 36, to generate constant jets across the entire width of the vat.
  • the cheese typically mozzarella cheese in small, round pieces
  • hopper 14 for example by means of a conveyor belt not shown, and is propelled by the water stream generated in the hopper by the pipe 16 and conduit 20.
  • the stream pushes the cheese into vat 10.
  • the cheese pieces will sink to the vat bottom and will be slowly transported by the stream in the vat to the delivery end of the vat, through the transport will be partial and irregular.
  • nozzles 40, 42, 43, ... will project a high-speed, bubbly water spurt in the general forward direction from the loading end to the delivery end of the vat.
  • Each of said water spurts will cause a forward, rolling leap of the cheese pieces in the underlying area, with a bouyancy effect due to the mixed air.
  • the vat bottom will be more or less uniformly covered with cheese from one end to the other.
  • the last nozzle emits its spurt, while sweeping the vat bottom trans­versely, the cheese in that area is pushed forwardly, until it is captured by the spurts from the stationary nozzles, and is pushed unto extraction belt 24, to be withdrawn from the vat and delivered to subsequent processing.
  • the overall effect is to push along the cheese by separate leaps with intervening periods of rest, and with a good control of the average dwelling time of each piece, and without any contact with mechanical members, except for the vat walls.
  • Stationary nozzles 64 ensure that the cheese, when near extractor belt 24, is immediately pushed onto it, so that the terminal area is always free.
  • each of the tubes 40, 42, 43, ... has a row of several holes such as 68 (Fig. 5) thru the tube wall above the water level 13, and a cone or inverted funnel 70 is welded to the tube wall above the height of holes 68 to form an ejector. Air is thus sucked in by the jets and is mixed to the water.
  • One desirable effect of such mixing is to increase the turbulence of the water in the vat and to generate air bubbles which add buoyancy to the mozzarella pieces.
  • an even more desirable effect is achieved in that the water in the vat is strongly oxygenated by the intaken air, and the bacterial population is thus checked or eliminated.
  • the same cones and holes are preferably provided in the stationary nozzles 64.
  • auxiliary members will cooperate with the above described hardening vat, which are not disclosed because they are obvious for a person skilled in the art, such as an external water refrigerator, an electric control panel. These have not been described because they do not belong to the invention.
  • some of the facilities described could be differently designed, such as the loading hopper, the extractor belt, the driving mechanism of the longitudinal pipe, the control mechanism.
  • the bank of cam-operated switches could be replaced with a programmable electronic con­troller, in a way obvious for the person skilled in the art.
  • some of the units described could be dispensed with in special cases, such as the bank of auxiliary nozzles, or the ejector devices incorporated in the depending tubes.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • Dairy Products (AREA)
EP88200861A 1987-10-23 1988-05-03 Réservoir de solidification de mozarelle et de fromages frais similaires de type pasta filata Withdrawn EP0313112A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8767884A IT1211492B (it) 1987-10-23 1987-10-23 Le fiordilatte e simili vasca di rassodamento per mozzarel
IT6788487 1987-10-23

Publications (1)

Publication Number Publication Date
EP0313112A2 true EP0313112A2 (fr) 1989-04-26

Family

ID=11306070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200861A Withdrawn EP0313112A2 (fr) 1987-10-23 1988-05-03 Réservoir de solidification de mozarelle et de fromages frais similaires de type pasta filata

Country Status (2)

Country Link
EP (1) EP0313112A2 (fr)
IT (1) IT1211492B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1234503A1 (fr) 2001-02-14 2002-08-28 Helmut Schäfer Appareil et procédé pour le pétrissage en cercle de morceaux de pâte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1234503A1 (fr) 2001-02-14 2002-08-28 Helmut Schäfer Appareil et procédé pour le pétrissage en cercle de morceaux de pâte
DE10107406C2 (de) * 2001-02-14 2003-07-17 Helmut Schaefer Maschine zum Rundformen von Teigstücken

Also Published As

Publication number Publication date
IT1211492B (it) 1989-11-03
IT8767884A0 (it) 1987-10-23

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